Auto-protector



H. B. HARKINS, H. B. HOLSTEIN AND W. A. POLAND.

AUTO PROTECTOR.

APPLICATION FILED SEPT. 15. 1919.

Patented Nov. 30, 1920.

2 sums-SHEET 1.

. Il!!! rift' H. B. HARKINS, H. B. HLSTEIN AND W. A. PLAND.

AUTO PROTECTOR.

APPLICATION FILED SEPT. I5, 1919.

,$360,944. A Patented Nov.' 30,1920.

2 SHEETS-SHEET 2.

UNITED. STATES PATENT OFFICE.

HARRY B. IV-IARKIN S, HENRY B. HOLSTEIN, AND WILLIAM A. POLAND, F LEAVEN- WORTH, KANSAS.

AUTO-PROTECTOR.

Specification of Letters Patent.

Patented Nov. 30, 1920.

Application filed September 15, 1919. Serial No. 323,739.

To ZZ whom may concern.'

Be it known that we, HARRY B. HARKINS, HENRY B. HoLsTErN, and WILLIAM A. POLAND, citizens of the United States, resid,- ing` at Leavenworth, in the county of Leavenworth and State of Kansas, have invented new and useful Improvements in Auto-Protectors, of which the following is a specification.

rThis invention has reference to means for cutting off the supply of gasolene between the gas tank and carbureter of an automobile to prevent the running of the machine by unauthorized persons.

An object of the invention is to produce a device of this character which may be conveniently operated by the occupant of car to move a valve in the supply pipe between the gas tank and the carbureter to open or close the supply, means being provided for locking the valve 1n its closed position, said means being in the nature of a removable key which when removed by the owner or operator of the car prevents further operation of the valve.

A still further object of the invention is to produce a device of this character. which may be arranged upon the supply pipe be` tween the gas tank and thc carburcter of any ordinary construction of cars.

It is a still further object of the invention to produce a protector for automobiles to prevent the surreptit-ious running or steering thereof which shall be of a comparatively simple construction, cheap to manufacture, easily and quickly applied, and which shall be thoroughly efficient in operation.

Other objects and advantages will prel sent themselves as the nature of the invention is better understood, reference being had to the accompanying drawings, in which:

Figure 1 is a side elevation of the improvement.

Fig. 2 is an approximately cent-ral longitudinal sectional view through the same.

Fig. 3 is a top plan view.

F ig. 4 is a sectional view approximately on the line 4 4 of Fig. 1, looking in the direction of the arrows.

Fig. 5 is a sectional view approximately on the line 5-5 of Fig. 2.

Fig. 6 is a sectional view approximately l on the line 6-6 of Fig. 2.

Fig. 7 is a sectional view approximately on the line 7-7 of Fig. 2.

' lar The supply pipe leading from the gas tank of any ordinary construction of automobiles is indicated by the numeral 10. This pipe is constructed of sections, and two of the confronting sections are threadedly en` gaged by a tubular valve casing 11. The casing 11, adjacent to one end thereof is provided with a valve seat 12, and has at its opposite end a ferrule 13 that threadedly receives the lower gas feed pipe section 12, or the section nearest the gas tank. To the opposite or outer feed pipe section 10 there is threadedly secured a T 14, the branch of which being threadedly engaged by a pipe 15 that leads to the carbureter. The outer portion of the T 14, at the longitudinal passage thereof is enlarged or formed with a head 16, Athe same having interior threads, and resting on the shoulder provided between the head and the longitudinal passage of the T proper is a guide washer 17. The threaded head or enlargement 16 of the T 14 is engaged by the threaded end of a tubumember or extension 18 formed on a easing 19. The tubular member 18 is provided with an interior enlargementl at the upper end thereof, the same forming a shoulder which bears against the guide washer 17 to firmly hold the same against the shoulder provided between the T 14 and the head 16 thereof. The bore of the tubular extension 18 inward of the referred to shoulder is, for a determined length preferably noncircular, or in other words presents a plurality of walls, so that the same may be square or Octagon shape, but the outer portion of the said bore, that is the portion thereof arranged adjacent the top face of the casing 19 is round. Inthe non-circular l bore of the tubular extension 18, which -by 9 there is received a slidable member in the nature of a metallic block 21. This block has a cross sectional contour corresponding with that of the bore 20, so that the said block, while susceptible to longitudinal movement through the bore will be held against rotary movement therein. To the bottom of the block there is swiveled or otherwise secured a rod 22. This rod extends through the T and through the outer pipe section 10 into the valve casing 11 and is either swiveled or otherwise connected kto the apex at the tubular end 23 of the valve 24. The body formed with spaced longitudinal grooves 25 that Yprovlde 'passages for the gasolene trom l. 11,.V and thus close the supply of gas fromJ j Vthe tank to the carbureter.

oi' the valve, upon its outer perimeter is the gas tank. Y

The slidable block 21, from the outer end thereof is formed with a threaded bore 26. The threads of the bore 2G are engaged by threads 27 formed upon the inner end of aV turnable member or key 28. T he key has Van annular extension or shoulder 29 that is designed to contact with a bushing 30 that threadedly engages with the outer portion of the non-threaded part of the bore 20. rlhe portion or shank of the key projecting beyond the shoulder 29 passes through a circular opening in thev bushing 30 and is received in an opening in a cross bar 31 that rests on the top of the casing 19. A pin 32 secures the shank of the operating member or key 28 in the cross bar 31. To the opposite :ends of the rcross bar Vthere is Vpivotally connected the arms oi an arched handle 33.

lt will be apparent that by turning the handle in one direction the threaded end o the key engaging the4 threaded bore of the block will cause the block to be moved, say outwardly7 or toward the outer face of the casing 19,"in which instance the rod 22 will exert a pull upon the valve to cause the conical end 23Y thereoi to engage with the concaved ground seat 12 in the valve casing Likewise, if the handle 33 is turned in an opposite direction the: key will :force the block 21 downwardV in the extension 18 of the casin'guntil one Vend thereof rests upon the guide washer 17,

This moves the valve oli?V its seat so that the `gnsoieneV can flow through the pipe -11 and through the passage 25 in the periphery oi Vthe body of the valve and vfrom 'thence through the pipe 15 to the carbureter. y

The `block21,upon one of the sides thereof is formedV vwitha notch 34. This notch is inthe path of engagement of a lock bolt 35 that is actuated by a tumbler `block 36in the casing'19. The key for the lock, indicated by the numeral 37 is removable,and it will beY apparent that jwhen the handle 33 is operated lto close the passage between the sections oi? the Vgas conducting pipe `1() the key 37 may be actuated to throwy the bolt into the keeper notch 311 in the block 21, and the removal of the key prevents the surreptitious operation of the device. The rod 22 is guided through the Vguide washer 17, and when the valve is in closed position the same can notbe unseated until the key 3'? is again applied to bring the ,bolt out of locking position.` Y Y Y Y Having thus described the invention, what is claimed as new, is

. The combination with a feed pipe between a'gas tank and a carbureter, or' a motor driven machine, of a valve casing in said `pipe having a conical valve seat, a conical valve having a round body which is grooved,

slidable in the casing, a rod for the valve projecting through the pipe, guide means 'I'or the rod, a notched block havinga thread ed boreV connected'to the outer endV ofthe rod, a casing in which the block is receivedV for slidable movement, a revoluble key memlV ber inthe casing having a threadedV portion -engaging'the threaded bore of Vthe block,

meansl retaining the key i-n 'the casing, operating means Jr'or the key arranged exteriorlyof the casing, a lock casing secured to the first mentioned casing, a lock'including aslidable bolt in the last mentioned casing,

and said bolt entering thefirst mentioned casing and designed Yto beV received inY the notch'or the slidable block when the latter has been moved by the operation of the key Y Lc oringsaid block 1n Va line withV the bolt and by virtue of such movement to move thel rod longitudinally and seat the valve.` In testimony whereof we aixxour signatures. Y

`HARRY B HARKINS j Y HENRY'B. HOLSTEIN. WILLIAM APOLAND. 

